Ad substance
[医] 突触传递物质
🧩 词语组成解析
ad
[æd]
n. 广告;网球中的优势分advantage. ad in;
🗣️ 情景例句
In every marriage,
婚姻中，
Do you have anything to declare?
你有东西要申报关税吗？
Trafalgar Square, please.
请买一张到特拉法加广场的票。